Question

Complete the following equation:

Answer 1

Hint:Ethyne is a hydrocarbon with the chemical formula ${C_2}{H_2}$. Ethylene is a colorless gas. Ethylene is widely used in the industry as a fuel. It is also called acetylene. When ethylene gas is passed in a red hot iron tube, it leads to the formation of an aromatic compound.

Complete step by step answer:
Molecules of ethyne gas are treated in a red hot iron tube where it undergoes cyclic polymerization to yield benzene.
Benzene is obtained from ethyne gas via the process of cyclic polymerization. In this process, Ethyne gas is passed through a red hot iron tube at\[873{ }K\]. The ethyne molecule then undergoes cyclic polymerization and forms aromatic compound benzene.
In the process of cyclic polymerization, triple bonds of ethyne are broken and substituted by hydrogen in place of that and then these molecules rearrange themselves into a much more stable structure of benzene in the presence of an organometallic Nickel catalyst.
\[3\] molecules of ethyne gas are reacted to yield one molecule of benzene. The reaction for this is;

Benzene is an aromatic compound. Its chemical formula is ${C_6}{H_6}$. In benzene, each carbon atom is arranged in a six-membered ring and is bonded to one hydrogen atom. According to molecular orbital, the stability of benzene is due to the formation of $3$ delocalized $\pi - $ orbitals on the six carbon atoms, Thus making benzene a resonance stabilized structure.

Note:
Benzene can also be produced from aromatic acids, phenols, or sulphonic acids using different reaction mechanisms and catalysts. In the industry, it is used in the making of different types of lubricants, rubbers, dyes, detergents, drugs, and pesticides.